Robtex

Up: 167.239.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 167.239.0.0/19
Down right: 167.239.32.0/19

IP	Type	Hostname
167.239.10.17	A	host-17-10-239-167.aep.com
167.239.10.37	A	host-37-10-239-167.aep.com
167.239.10.55	A	host-55-10-239-167.aep.com
167.239.10.75	A	host-75-10-239-167.aep.com
167.239.10.82	A	host-82-10-239-167.aep.com
167.239.10.100	A	host-100-10-239-167.aep.com
167.239.10.102	A	host-102-10-239-167.aep.com
167.239.10.130	A+PTR	host-130-10-239-167.aep.com
167.239.10.136	A	host-136-10-239-167.aep.com
167.239.10.155	A	host-155-10-239-167.aep.com
167.239.10.199	A	host-199-10-239-167.aep.com
167.239.10.200	A	host-200-10-239-167.aep.com
167.239.10.230	A	host-230-10-239-167.aep.com
167.239.10.232	A	host-232-10-239-167.aep.com
167.239.12.34	A+PTR	host-34-12-239-167.aep.com
167.239.13.2	A+PTR	host-2-13-239-167.aep.com
167.239.14.74	A+PTR	host-74-14-239-167.aep.com
167.239.14.174	A+PTR	host-174-14-239-167.aep.com
167.239.17.2	A+PTR	host-2-17-239-167.aep.com
167.239.18.2	A+PTR	host-2-18-239-167.aep.com
167.239.21.208	A	host-208-21-239-167.aep.com
167.239.22.2	A+PTR	host-2-22-239-167.aep.com
167.239.22.3	A	host-3-22-239-167.aep.com
167.239.22.9	A	host-9-22-239-167.aep.com
167.239.22.11	A	host-11-22-239-167.aep.com
167.239.22.78	A	host-78-22-239-167.aep.com
167.239.22.83	A	host-83-22-239-167.aep.com
167.239.22.88	A	host-88-22-239-167.aep.com
167.239.22.99	A	host-99-22-239-167.aep.com
167.239.22.130	A+PTR	host-130-22-239-167.aep.com
167.239.22.131	A	host-131-22-239-167.aep.com
167.239.22.136	A	host-136-22-239-167.aep.com
167.239.22.138	A	host-138-22-239-167.aep.com
167.239.22.230	A	host-230-22-239-167.aep.com
167.239.22.246	A	host-246-22-239-167.aep.com
167.239.22.247	A	host-247-22-239-167.aep.com
167.239.23.43	A	host-43-23-239-167.aep.com